Things You'll Need
Create a moving cardboard arm as an art project or use the arm to each kids about joints in the body. Allow students to trace a pattern of a bent arm on paper or pass out photocopies of a pattern to start an engaging class project.
Cut out a pattern of an arm with a pair of scissors and then glue the pattern to a piece of cardboard.
Make two holes, approximately 1/4 inch apart, near the elbow with a hole punch. Holes must be aligned -- one on top of the other.
Cut the pattern out of the cardboard with a pair of scissors, and then cut the pattern in half. Make the cut in the space between both holes on the elbow.
Fasten the forearm to the upper arm with a paper fastener. Insert the paper fastener through the holes on both the lower and upper arm; spread the metal prongs of the fastener to secure the cardboard.
Move the forearm up and down to give the appearance of a waving cardboard arm.